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Date: Sat, 9 Dec 2017 13:58:27 -0700 From: Subash Abhinov Kasiviswanathan <subashab@...eaurora.org> To: davem@...emloft.net, netdev@...r.kernel.org Cc: Subash Abhinov Kasiviswanathan <subashab@...eaurora.org> Subject: [PATCH net-next v2 3/6] net: qualcomm: rmnet: Allow only one rmnet dev per muxid per real dev Upon de-multiplexing data from one real dev, the packets can be sent to an unique rmnet device for a given mux id. Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@...eaurora.org> --- drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c index 9caa5e3..5bb29f4 100644 --- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c +++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c @@ -185,6 +185,9 @@ int rmnet_vnd_newlink(u8 id, struct net_device *rmnet_dev, if (ep->egress_dev) return -EINVAL; + if (rmnet_get_endpoint(port, id)) + return -EBUSY; + rc = register_netdevice(rmnet_dev); if (!rc) { ep->egress_dev = rmnet_dev; -- 1.9.1
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